bobby says he contracted the virus by abusing drugs and sharing dirty needles. he says getting treatment was tough because he was homeless. >> it was hard to worry about going for a doctor when you were worried about whether your food was being eaten by a mouse when you were away. >> now he's running a clinic. living with the virus is no longer a war for survival, it's a battle he wants to help others fight. >> mission to the moon still ahead. china launches the jade rabbit, hoping to become the third country to soft land on the luna surface. the national zoo picks a name for its new baby panda. >> it's a big day for little cub at the national zoo in washington d.c. the 100 day -old panda cub's name was released. bow bow. meaning pressures our treasure in chinese. it's the second-surviving cub to be born at the smithsonian national zoo. china launched a mission to the moon. the jade rabbit rover will explore the landscape and search for resources, paving the way for manned lunar landings. tarek bazely has more on the mission. >> named after an ancient chinese mo